Hi David, > I am having trouble installing netCDF on a POWER INDIGO in 64 bit mode > It runs fine if I use the flag -32, but this makes my program go really slow. > Which version of netCDF do I need to get to compile in 64 bit mode and what > is > the proper sequence of build commands that I need to run. Get the latest beta release from ftp://ftp.unidata.ucar.edu/pub/netcdf/netcdf-2.4-beta.tar.Z and follow the instructions in the INSTALL file. You might be able to use something as simple as: ./configure make all make test ______________________________________________________________________________ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu